이름: Reusing a Nonce, Key Pair in Encryption

Nonces should be used for the present occasion and only once.

일반 정보

배경 세부 정보

취약점 도입 방식

Architecture and Design : REALIZATION: This weakness is caused during implementation of an architectural security tactic.

적용 가능한 플랫폼

언어

클래스: Not Language-Specific (Undetermined)

일반적인 결과

범위	영향	가능성
Access Control	Bypass Protection Mechanism, Gain Privileges or Assume Identity 참고: Potentially a replay attack, in which an attacker could send the same data twice, could be crafted if nonces are allowed to be reused. This could allow a user to send a message which masquerades as a valid message from a valid user.

관찰된 예시

참고 자료	설명
CVE-2024-36289	social networking app reuses a nonce/key pair, allowing MITM attackers to manipulate direct messages
CVE-2024-21530	Rust package reuses a nonce/key pair when an object is cloned, which resets the random number generation

잠재적 완화 방법

Phases : Implementation
Refuse to reuse nonce values.
Phases : Implementation
Use techniques such as requiring incrementing, time based and/or challenge response to assure uniqueness of nonces.

탐지 방법

Automated Static Analysis

Automated static analysis, commonly referred to as Static Application Security Testing (SAST), can find some instances of this weakness by analyzing source code (or binary/compiled code) without having to execute it. Typically, this is done by building a model of data flow and control flow, then searching for potentially-vulnerable patterns that connect "sources" (origins of input) with "sinks" (destinations where the data interacts with external components, a lower layer such as the OS, etc.)

취약점 매핑 메모

근거 : This CWE entry is at the Base level of abstraction, which is a preferred level of abstraction for mapping to the root causes of vulnerabilities.
댓글 : Carefully read both the name and description to ensure that this mapping is an appropriate fit. Do not try to 'force' a mapping to a lower-level Base/Variant simply to comply with this preferred level of abstraction.

참고 자료

REF-18

The CLASP Application Security Process
Secure Software, Inc..
https://cwe.mitre.org/documents/sources/TheCLASPApplicationSecurityProcess.pdf

제출

이름	조직	날짜	출시일	Version
CLASP		2006-07-19 +00:00	2006-07-19 +00:00	Draft 3

수정 사항

이름	조직	날짜	댓글
Eric Dalci	Cigital	2008-07-01 +00:00	updated Time_of_Introduction
CWE Content Team	MITRE	2008-09-08 +00:00	updated Background_Details, Common_Consequences, Relationships, Taxonomy_Mappings
CWE Content Team	MITRE	2011-06-01 +00:00	updated Common_Consequences
CWE Content Team	MITRE	2012-05-11 +00:00	updated Relationships
CWE Content Team	MITRE	2012-10-30 +00:00	updated Demonstrative_Examples, Potential_Mitigations
CWE Content Team	MITRE	2014-07-30 +00:00	updated Relationships
CWE Content Team	MITRE	2017-11-08 +00:00	updated Applicable_Platforms, Modes_of_Introduction, Relationships
CWE Content Team	MITRE	2019-06-20 +00:00	updated Type
CWE Content Team	MITRE	2020-02-24 +00:00	updated References
CWE Content Team	MITRE	2021-10-28 +00:00	updated Relationships
CWE Content Team	MITRE	2023-04-27 +00:00	updated Relationships, Type
CWE Content Team	MITRE	2023-06-29 +00:00	updated Mapping_Notes
CWE Content Team	MITRE	2025-12-11 +00:00	updated Detection_Factors, Relationships, Weakness_Ordinalities
CWE Content Team	MITRE	2026-04-30 +00:00	updated Observed_Examples

CWE-323 상세 정보

CWE-323